// import { createCellPos } from './translateNumToLetter'
import { isIOS } from "@/utils/common";
import dayjs from "dayjs";
import Excel from "exceljs";
import FileSaver from "file-saver";

// safari 无法下载文件
const exportExcel = function (luckysheet: any, value: any, t: any) {
  // 参数为luckysheet.getluckysheetfile()获取的对象
  // 1.创建工作簿，可以为工作簿添加属性
  const workbook = new Excel.Workbook();
  // 2.创建表格，第二个参数可以配置创建什么样的工作表
  if (Object.prototype.toString.call(luckysheet) === "[object Object]") {
    luckysheet = [luckysheet];
  }
  luckysheet.forEach(function (table: any) {
    if (table.data.length === 0) return true;
    // ws.getCell('B2').fill = fills.
    const worksheet = workbook.addWorksheet(table.name);
    const merge = (table.config && table.config.merge) || {};
    const borderInfo = (table.config && table.config.borderInfo) || {};
    // 3.设置单元格合并,设置单元格边框,设置单元格样式,设置值
    setStyleAndValue(table.data, worksheet);
    setMerge(merge, worksheet);
    setBorder(borderInfo, worksheet);
    return true;
  });

  // return
  // 4.写入 buffer
  const buffer = workbook.xlsx.writeBuffer().then((data) => {
    // console.log('data', data)
    const blob = new Blob([data], {
      // type: "application/vnd.ms-excel;charset=utf-8",
      type: "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-8",
    });

    let isios = isIOS();
    let fileName = isios ? `${value}` : `${value}.xlsx`;
    FileSaver.saveAs(blob, fileName);
    // console.log("isios", isios);
    // 小程序
    // const tempFilePath = URL.createObjectURL(blob);
    // Taro.saveFile({
    //   tempFilePath: tempFilePath,
    //   success: function (res) {
    //     Taro.showToast({
    //       title: t("home.downloadResultSuccess"),
    //       icon: "none",
    //       duration: 2000,
    //     });
    //   },
    //   fail: function (res) {
    //     console.log("fail res", res);
    //     Taro.showToast({
    //       title: t("home.downloadResultFail"),
    //       icon: "none",
    //       duration: 2000,
    //     });
    //   },
    // } as any);

    // if (isios) {
    //   const blobUrl = URL.createObjectURL(blob);

    //   const iframe = document.createElement("iframe");
    //   iframe.style.display = "none";
    //   iframe.src = "www.baidu.com";

    //   // 在 iframe 加载完成之后设置下载
    //   iframe.onload = () => {
    //     console.log("iframe.onload ", iframe.onload);
    //     const link = document.createElement("a");
    //     link.href = blobUrl;
    //     link.download = fileName;

    //     // 触发点击事件
    //     document.body.appendChild(link);
    //     link.click();
    //     document.body.removeChild(link);

    //     // 之后移除 iframe
    //     document.body.removeChild(iframe);
    //     URL.revokeObjectURL(blobUrl);
    //   };

    //   // !模拟点击:失败
    //   // const url = URL.createObjectURL(blob);
    //   // const a = document.createElement("a");
    //   // a.href = url;
    //   // a.download = fileName;
    //   // document.body.appendChild(a);
    //   // const downloadEvent = new MouseEvent("click", {
    //   //   view: window,
    //   //   bubbles: true,
    //   //   cancelable: true,
    //   // });
    //   // a.dispatchEvent(downloadEvent);
    //   // document.body.removeChild(a);
    //   // URL.revokeObjectURL(url);

    //   // a.style.display = "none";
    //   // document.body.appendChild(a);
    //   // a.click();
    //   // document.body.removeChild(a);
    //   // URL.revokeObjectURL(url);
    // } else {
    //   FileSaver.saveAs(blob, fileName);
    // }
    console.log("导出成功！");
  });
  return buffer;
};

var setMerge = function (luckyMerge = {}, worksheet: any) {
  const mergearr = Object.values(luckyMerge);
  mergearr.forEach(function (elem: any) {
    // elem格式：{r: 0, c: 0, rs: 1, cs: 2}
    // 按开始行，开始列，结束行，结束列合并（相当于 K10:M12）
    worksheet.mergeCells(
      elem.r + 1,
      elem.c + 1,
      elem.r + elem.rs,
      elem.c + elem.cs
    );
  });
};

var setBorder = function (luckyBorderInfo: any, worksheet: any) {
  if (!Array.isArray(luckyBorderInfo)) return;
  // console.log('luckyBorderInfo', luckyBorderInfo)
  luckyBorderInfo.forEach(function (elem) {
    // 现在只兼容到borderType 为range的情况
    // console.log('ele', elem)
    if (elem.rangeType === "range") {
      let border = borderConvert(elem.borderType, elem.style, elem.color);
      let rang = elem.range[0];
      // console.log('range', rang)
      let row = rang.row;
      let column = rang.column;
      for (let i = row[0] + 1; i < row[1] + 2; i++) {
        for (let y = column[0] + 1; y < column[1] + 2; y++) {
          worksheet.getCell(i, y).border = border;
        }
      }
    }
    if (elem.rangeType === "cell") {
      // col_index: 2
      // row_index: 1
      // b: {
      //   color: '#d0d4e3'
      //   style: 1
      // }
      const { col_index, row_index } = elem.value;
      const borderData = Object.assign({}, elem.value);
      delete borderData.col_index;
      delete borderData.row_index;
      let border = addborderToCell(borderData, row_index, col_index);
      // console.log('bordre', border, borderData)
      worksheet.getCell(row_index + 1, col_index + 1).border = border;
    }
    // console.log(rang.column_focus + 1, rang.row_focus + 1)
    // worksheet.getCell(rang.row_focus + 1, rang.column_focus + 1).border = border
  });
};

function transformDateStr(str: string) {
  if (str && typeof str === "string") {
    const dateTimeFormatRegex = /\d{4}-\d{2}-\d{2} \d{2}:\d{2}:\d{2}/g;
    str = str.replace(dateTimeFormatRegex, (match) => {
      return dayjs(match).format("YYYY-MM-DD HH:mm:ss");
    });
  }
  return str;
}

var setStyleAndValue = function (cellArr: any, worksheet: any) {
  if (!Array.isArray(cellArr)) return;
  cellArr.forEach(function (row, rowid) {
    row.every(function (cell: any, columnid: any) {
      if (!cell) return true;
      let fill = fillConvert(cell.bg);

      let font = fontConvert(
        cell.ff,
        cell.fc,
        cell.bl,
        cell.it,
        cell.fs,
        cell.cl,
        cell.ul
      );
      let alignment = alignmentConvert(cell.vt, cell.ht, cell.tb, cell.tr);
      let value: any = "";

      if (cell.f) {
        value = { formula: cell.f, result: cell.v };
      } else if (!cell.v && cell.ct && cell.ct.s) {
        // xls转为xlsx之后，内部存在不同的格式，都会进到富文本里，即值不存在与cell.v，而是存在于cell.ct.s之后
        // value = cell.ct.s[0].v
        cell.ct.s.forEach((arr: any) => {
          value += arr.v;
        });
      } else {
        value = cell.v;
      }
      //  style 填入到_value中可以实现填充色
      let letter = createCellPos(columnid);
      let target = worksheet.getCell(letter + (rowid + 1));
      // console.log('1233', letter + (rowid + 1))
      for (const key in fill) {
        target.fill = fill;
        break;
      }
      target.font = font;
      target.alignment = alignment;
      target.value = transformDateStr(value);
      return true;
    });
  });
};

var fillConvert = function (bg: any) {
  if (!bg) {
    return {};
  }
  // const bgc = bg.replace('#', '')
  let fill = {
    type: "pattern",
    pattern: "solid",
    fgColor: { argb: bg.replace("#", "") },
  };
  return fill;
};

var fontConvert = function (
  ff = 0,
  fc = "#000000",
  bl = 0,
  it = 0,
  fs = 10,
  cl = 0,
  ul = 0
) {
  // luckysheet：ff(样式), fc(颜色), bl(粗体), it(斜体), fs(大小), cl(删除线), ul(下划线)
  const luckyToExcel: any = {
    0: "微软雅黑",
    1: "宋体（Song）",
    2: "黑体（ST Heiti）",
    3: "楷体（ST Kaiti）",
    4: "仿宋（ST FangSong）",
    5: "新宋体（ST Song）",
    6: "华文新魏",
    7: "华文行楷",
    8: "华文隶书",
    9: "Arial",
    10: "Times New Roman ",
    11: "Tahoma ",
    12: "Verdana",
    num2bl: function (num: any) {
      return num === 0 ? false : true;
    },
  };
  // 出现Bug，导入的时候ff为luckyToExcel的val

  let font = {
    name: typeof ff === "number" ? luckyToExcel[ff] : ff,
    family: 1,
    size: fs,
    color: { argb: fc.replace("#", "") },
    bold: luckyToExcel.num2bl(bl),
    italic: luckyToExcel.num2bl(it),
    underline: luckyToExcel.num2bl(ul),
    strike: luckyToExcel.num2bl(cl),
  };

  return font;
};

var alignmentConvert = function (
  vt = "default",
  ht = "default",
  tb = "default",
  tr = "default"
) {
  // luckysheet:vt(垂直), ht(水平), tb(换行), tr(旋转)
  const luckyToExcel: any = {
    vertical: {
      0: "middle",
      1: "top",
      2: "bottom",
      default: "top",
    },
    horizontal: {
      0: "center",
      1: "left",
      2: "right",
      default: "left",
    },
    wrapText: {
      0: false,
      1: false,
      2: true,
      default: false,
    },
    textRotation: {
      0: 0,
      1: 45,
      2: -45,
      3: "vertical",
      4: 90,
      5: -90,
      default: 0,
    },
  };

  let alignment = {
    vertical: luckyToExcel.vertical[vt],
    horizontal: luckyToExcel.horizontal[ht],
    wrapText: luckyToExcel.wrapText[tb],
    textRotation: luckyToExcel.textRotation[tr],
  };
  return alignment;
};

var borderConvert = function (borderType: any, style = 1, color = "#000") {
  // 对应luckysheet的config中borderinfo的的参数
  if (!borderType) {
    return {};
  }
  const luckyToExcel: any = {
    type: {
      "border-all": "all",
      "border-top": "top",
      "border-right": "right",
      "border-bottom": "bottom",
      "border-left": "left",
    },
    style: {
      0: "none",
      1: "thin",
      2: "hair",
      3: "dotted",
      4: "dashDot", // 'Dashed',
      5: "dashDot",
      6: "dashDotDot",
      7: "double",
      8: "medium",
      9: "mediumDashed",
      10: "mediumDashDot",
      11: "mediumDashDotDot",
      12: "slantDashDot",
      13: "thick",
    },
  };
  let template = {
    style: luckyToExcel.style[style],
    color: { argb: color.replace("#", "") },
  };
  let border: any = {};
  if (luckyToExcel.type[borderType] === "all") {
    border["top"] = template;
    border["right"] = template;
    border["bottom"] = template;
    border["left"] = template;
  } else {
    border[luckyToExcel.type[borderType]] = template;
  }
  // console.log('border', border)
  return border;
};

function addborderToCell(borders: any, row_index: any, col_index: any) {
  let border: any = {};
  const luckyExcel: any = {
    type: {
      l: "left",
      r: "right",
      b: "bottom",
      t: "top",
    },
    style: {
      0: "none",
      1: "thin",
      2: "hair",
      3: "dotted",
      4: "dashDot", // 'Dashed',
      5: "dashDot",
      6: "dashDotDot",
      7: "double",
      8: "medium",
      9: "mediumDashed",
      10: "mediumDashDot",
      11: "mediumDashDotDot",
      12: "slantDashDot",
      13: "thick",
    },
  };
  // console.log('borders', borders)
  for (const bor in borders) {
    // console.log(bor)
    if (borders[bor].color.indexOf("rgb") === -1) {
      border[luckyExcel.type[bor]] = {
        style: luckyExcel.style[borders[bor].style],
        color: { argb: borders[bor].color.replace("#", "") },
      };
    } else {
      border[luckyExcel.type[bor]] = {
        style: luckyExcel.style[borders[bor].style],
        color: { argb: borders[bor].color },
      };
    }
  }

  return border;
}

function createCellPos(n: any) {
  let ordA = "A".charCodeAt(0);

  let ordZ = "Z".charCodeAt(0);
  let len = ordZ - ordA + 1;
  let s = "";
  while (n >= 0) {
    s = String.fromCharCode((n % len) + ordA) + s;

    n = Math.floor(n / len) - 1;
  }
  return s;
}

export { exportExcel };
